In terms of the liquidity question... this table may be of...

In terms of the liquidity question... this table may be of interest. From it we can see that FIL has been a steady holder since the writeoffs while perpetual has reduced their position.

	Column 1	Column 2	Column 3	Column 4	Column 5	Column 6
1	Substantial Holder	2017	2016	2015	2014	2013
2	Stephen Roche and associates	84,979,804	84,679,804	42,339,902	50,639,902	50,339,902
3	Simon Morrison and associates	84,979,804	84,884,634	42,339,902	50,639,902	50,339,902
4	FIL Limited and associates	17,109,888	17,179,661	-	-	-
5	Perpetual Limited and associates	9,141,719	23,097,035	-	-	-
6	National Nominees	-	-	12,364,119	11,050,092	6,743,971
7	J P Morgan Nominees Australia Ltd	-	-	13,568,888	8,906,388	5,393,609
8	Citicorp Nominees Pty Ltd	-	-	9,824,338	12,657,775	-
9	RBC Investor Services	-	-	-	-	5,757,774
10
11	Total substantial holdings (Reported)	196,211,215	209,841,134	110,612,811	121,236,284	112,817,384
12	Total substantial holdings (Adjusted)	111,231,411	125,058,915	78,097,247	83,254,157	62,477,482
13
14	Total Shares Outstanding	173,161,812	173,000,038	172,000,968	155,000,000	141,775,578
15	% Ownership by Substantial holders	64%	72%	45%	54%	44%

Note that the way they've recorded Roche and Morrison as Substantial holders changed in 2016 and this doesn't represent an actual doubling of their holding in that year... i think they're showing them as being associated with each other and including the total held by both against each name. As such i've provided an adjusted total halving these numbers for those two years.

Edit: Hmm table didnt come out that well in hot copper but hopefully is readable.